diff -r 3461814417f3 -r 0bd56c291359 hgext/shelve.py
--- a/hgext/shelve.py	Mon Jan 21 15:29:14 2019 +0000
+++ b/hgext/shelve.py	Fri Jan 25 23:36:23 2019 -0800
@@ -674,7 +674,7 @@
         hg.update(repo, wctx.node())
         files = []
         files.extend(shelvectx.files())
-        files.extend(shelvectx.parents()[0].files())
+        files.extend(shelvectx.p1().files())
 
         # revert will overwrite unknown files, so move them out of the way
         for file in repo.status(unknown=True).unknown:
@@ -809,7 +809,7 @@
     """Rebase restored commit from its original location to a destination"""
     # If the shelve is not immediately on top of the commit
     # we'll be merging with, rebase it to be on top.
-    if tmpwctx.node() == shelvectx.parents()[0].node():
+    if tmpwctx.node() == shelvectx.p1().node():
         return shelvectx
 
     overrides = {